Ligaments knee Flashcards
Which ligaments can be found in the knee joint?
- ACL
- PCL
- LCL
- MCL
- Posterior meniscofemoral ligament
What does ACL stand for?
Anterior Cruciate Ligament
What does LCL stand for
Lateral Cruciate Ligament
What does MCL stand for
Medial Collateral Ligament
What does PCL stand for
Posterior Collateral Ligament
What other structure is found in the knee joint?
medial and lateral menisci
Function of ACL
- resist extension
- Resists extremes of varus, valgus,
and axial rotation
What are the menisci
menisci are crescent-shaped, fibrocartilaginous structures located within the
Function of menisci
- reduce the compressive
stress across the tibiofemoral joint - stabilizing joint during movement
- lubricating articular cartilage
- providing proprioception
- help guide knee’s arthrokinematics
Function of MCL
- Resists valgus (abduction)
- Resists knee extension
- Resists extremes of axial rotation
(especially knee external rotation)
Function of LCL
- Resists valgus (abduction)
- Resists knee extension
- Resists extremes of axial rotation
(especially knee external rotation)
Secondary Function of MCL/LCL
produce a generalized stabilizing tension to the near or fully extended knee
attachment of ACL
attaches along an impression on the anterior intercondylar area of the tibial plateau
attachment of PCL
attaches along an impression on the posterior intercondylar area of the tibial plateau
Function of PCL
- resist knee extension
- Resists extremes of varus, valgus,
and axial rotation